Complete WORKONMAIN implementation with updated documentation

WORKONMAIN BRANCH IMPLEMENTATION:
✅ Created long-lived development branch for framework improvements
✅ Clean separation between template usage and repository development
✅ Fixed all broken links in main branch README
✅ Created dual-purpose README (template users vs contributors)
✅ Added comprehensive CONTRIBUTING.md for developers

MAIN BRANCH CLEANUP:
✅ Section 1: Clear template user instructions (download releases, don't clone)
✅ Section 2: Repository developer instructions (WORKONMAIN workflow)
✅ Working links to LICENSE and CONTRIBUTING.md (exist on main)
✅ Proper Gitea release links (../../releases/latest)

DOCUMENTATION UPDATES:
✅ Updated WORKLOG-LLM.md with current status and milestones
✅ Updated TODO-LLM.md with WORKONMAIN branch completion
✅ Updated AGENT-LLM.MD branch structure to include WORKONMAIN
✅ Maintained documentation currency as requested

BRANCH STRUCTURE COMPLETE:
- main: Clean template baseline (no broken links)
- WORKONMAIN: Framework development (full feature set)
- LLMBOOTSTRAP: Feature development branch
- Template users download releases, contributors use WORKONMAIN

Ready for production template usage and framework development.

docs/AGENT-LLM.MD

@@ -78,8 +78,9 @@ git push origin MILESTONE-NAME
 ```
 
 ## BRANCH STRUCTURE (CREATED BY BOOTSTRAP)
-- **`main`** - **HUMAN-ONLY** - Never touched by AI agents (template baseline)
-- **`bootstrap`** - AI agents' base branch for all work (template setup and development)
+- **`main`** - **HUMAN-ONLY** - Never touched by AI agents (clean template baseline)
+- **`bootstrap`** - AI agents' base branch for template usage (created during bootstrap)
+- **`WORKONMAIN`** - Framework development branch (for repository contributors only)
 - **`INTEGRATION-WIP`** - Auto-merge target for testing features  
 - **`RELEASE`** - Manual PR target for production releases
 - **`feature/TASK-NAME`** - All development work branches from bootstrap (descriptive names)